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Class Information
Number: 451/148
Name: Abrading > Machine > Rotary reciprocating tool > Cylindrical tool > Rectilinear > Work rotating > Rotary work holder > Gear abrader > Hob
Description: Abrading machine in which the grinding tool is formed with a helical groove or tooth on its working surface for meshing with and grinding a gear.

Patents under this class:

Patent Number Title Of Patent Date Issued
6923712 Method and apparatus for grinding rotors for hydraulic motors and apparatus therefor Aug. 2, 2005
6425807 Method and apparatus for grinding rotors for hydraulic motors and apparatus therefor Jul. 30, 2002
6422924 Process for widening the crown of cylindrical-type gears by continuous diagonal hobbing Jul. 23, 2002
6065910 Gear shaper cutting method and apparatus May. 23, 2000
4949513 Method for the precision machining of particularly hardened gears and a tool suited therefor Aug. 21, 1990
4850155 Method for machining gearwheels Jul. 25, 1989
4650378 Method for machining a gear by means of a rotating gear-type tool Mar. 17, 1987
4561216 Workpiece engaging apparatus in grinding machines Dec. 31, 1985
4414495 Synchronism equipment for gear cutting machines Nov. 8, 1983

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